Daily Current Affairs for UPSC Civil Services Exam – 03 May 2021

In Today’s News:

  1. Guru Tegh Bahadur
  2. Converting Nitrogen plants to oxygen plants.

1. Guru Tegh Bahadur

News Summary

Hon’ble Prime Minister, Shri Narendra Modi has bowed to Sri Guru Teg Bahadur Ji on his 400th Parkash Purab.

Prelims GS – History

Guru Tegh Bahadur:
  • Guru Tegh Bahadur is the ninth Sikh Guru.
  • Guru Tegh Bahadur was a contemporary of Aurangazeb.
  • Guru Tegh Bahadur was executed on the orders of Aurangazeb.
  • His spiritual writings, detailing varied themes such as the nature of God, human attachments, body, mind, sorrow, dignity, service, death, and deliverance, are registered in the form of 116 poetic hymns in the sacred scripture, the Sri Guru Granth Sahib Ji.
  • To spread the message of Sikhism, the Guru traveled extensively through the Indian subcontinent, setting up several new preaching centers.
  • He founded the town of Chak-Nanki in Punjab, later enlarged by the tenth Nanak, Guru Gobind Singh Ji, into the city of Sri Anandpur Sahib.

Courtesy: Sikhwiki.

2. Converting Nitrogen plants to Oxygen plants

News Summary

Considering the requirement of medical oxygen amidst the COVID-19 pandemic situation, the Government of India explored the feasibility of the conversion of existing nitrogen plants to produce oxygen. Various such potential industries, wherein existing nitrogen plants may be spared for the production of oxygen were identified.

Prelims GS – Science & Technology

Conversion of Nitrogen plants to Oxygen plants:
  • The process of converting the existing Pressure Swing Absorption (PSA) nitrogen plants for the production of oxygen was discussed.
  • In the nitrogen plants, a Carbon Molecular Sieve (CMS) is used whereas Zeolite Molecular Sieve (ZMS) is required for producing oxygen.
  • Therefore, by replacing CMS with ZMS and carrying out few other changes such as oxygen analyzer, control panel system, flow valves, etc. existing nitrogen plants can be modified to produce oxygen.

Courtesy: PIB Press Release.

Zeolite Molecular sieve:

  • Molecular sieve adsorbents are crystalline aluminosilicates, known as zeolites.
  • Their unique structure allows the water of crystallization to be removed, leaving a porous crystalline structure.
  • These pores, or cages, have a high affinity to re-adsorb water or other polar molecules.
  • Aided by strong ionic forces (electrostatic fields) due to the presence of cations such as sodium, calcium, and potassium, and by the enormous internal surface area of up to 1,000 m2/g, molecular sieves will adsorb a considerable amount of water or other fluids.
  • Molecular sieves will, therefore, remove gas or liquid impurities to very low levels (ppm or less).
  • Another feature of molecular sieve adsorbents is their ability to separate gases or liquids by molecular size or polarity.

Click here to view the Courtesy: Zeochem website.



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